CN107291505A - A kind of method and device of controller system memory upgrading - Google Patents
A kind of method and device of controller system memory upgrading Download PDFInfo
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- CN107291505A CN107291505A CN201710507124.2A CN201710507124A CN107291505A CN 107291505 A CN107291505 A CN 107291505A CN 201710507124 A CN201710507124 A CN 201710507124A CN 107291505 A CN107291505 A CN 107291505A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44568—Immediately runnable code
- G06F9/44578—Preparing or optimising for loading
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4406—Loading of operating system
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Abstract
The invention discloses a kind of method of controller system memory upgrading, first upgraded by the second operating system to controller to be upgraded, pass through the first operating system business simultaneously, after the completion of the second operating system update, controller is restarted in isolation, there is the second operating system business, and the first operating system is upgraded, time needed for restarting controller due to isolation is relatively short, so as to shorten the time that storage system is in single-point state, improve the stability of system, two operating systems of controller are alternately upgraded and operation business simultaneously, to ensure business can also be kept not interrupt during upgrading, improve the high availability of storage system, present invention also offers a kind of device of the controller system memory upgrading with above-mentioned beneficial effect.
Description
Technical field
The present invention relates to high-end field of storage, more particularly to a kind of method and device of controller system memory upgrading.
Background technology
In the especially high-end field of storage of field of storage, high stability, high availability and business are often pursued
Continuity.Thus general storage system needs the moment continuously to run, and does not allow to crash, and needs to upgrade in storage system, safeguards
When, it is necessary to the controller that isolation is being upgraded.
The upgrade method of existing storage system is to isolate some controller, and the controller is upgraded, so
After restart controller, for there is the storage system of multiple controllers, be controlled the upgrading of device one by one in the same way.
Using above-mentioned upgrading mode, often the time shared by whole escalation process is very very long, so as to cause whole storage system
In non-stable state, it is easy to cause the crash of storage system, so as to lose data.
The content of the invention
It is an object of the invention to provide a kind of method of controller system memory upgrading, risen with solving to safeguard in storage system
During level, whole storage system is chronically at single-point state, the problem of stability is poor, and the present invention also provides a kind of storage system control
The device of device upgrading.
In order to solve the above technical problems, the present invention provides a kind of method of controller system memory upgrading, including：
AKU is uploaded to controller to be upgraded, and stores point to where the second operating system of the controller
Area, wherein, the controller is currently running the first operating system of the controller；Upgrade second operating system；By institute
The operating system that controller is booted up is stated, the operating system using second operating system as startup optimization is revised as；Every
From and restart the controller, the second operating system described in startup optimization；Upgrade first operating system.
Wherein, AKU is being uploaded to controller to be upgraded, and storing to the second operating system institute of the controller
Subregion after also include：
Detect whether the AKU is satisfactory, if it is, performing the operation of upgrading second operating system.
Wherein, also include after first operating system of upgrading：
The operating system that the controller is booted up, is revised as being used as startup optimization using first operating system
Operating system, during to restart the controller again, the first operating system described in startup optimization.
Wherein, the controller is multiple controllers；
It is described to isolate and restart the controller and include：
The isolation of multiple controllers is carried out in different time and the controller is restarted.
Wherein, upgrading second operating system includes：Second operation system of the synchronous multiple controllers of upgrading
System；The operating system for being booted up item of the bootstrap by the controller, is revised as with second operating system
Include as the operating system of startup optimization：The behaviour for being booted up item for synchronously entering the bootstrap for being about to multiple controllers
Make system, be revised as the operation using second operating system as the operating system of startup optimization；The upgrading described first
Operating system includes：First operating system of the synchronous multiple controllers of upgrading.
Wherein, multiple to be upgraded controllers of the AKU to storage system are being uploaded, and stored to the controller
Also include after subregion where second operating system：
Detect whether multiple controllers meet promotion condition, if it is, performing upgrading second operating system
Operation.
Present invention also offers a kind of device of controller system memory upgrading, including：Data module is transmitted, for uploading
AKU is stored to the subregion where the second operating system of the controller to controller to be upgraded, wherein, the control
Device processed is currently running the first operating system of the controller；Upgraded module, for second operating system of upgrading, is additionally operable to
Upgrade first operating system；Startup item module, for the operating system for being booted up the controller, is revised as with institute
The second operating system is stated as the operating system of startup optimization；Restart module, isolate and restart the controller, startup optimization institute
State the second operating system.
Wherein, in addition to detection module, for uploading AKU to controller to be upgraded, and store to the control
After subregion where second operating system of device, detect whether the AKU is satisfactory, if it is, performing upgrading
The operation of second operating system.
Wherein, in addition to control upgraded module, for the controller include multiple controllers, in different time carry out
Isolation in multiple controller escalation process simultaneously restarts the controller.
Wherein, the control upgraded module is additionally operable to the second operating system of the synchronous multiple controllers of upgrading；It is synchronous
Enter to be about to the operating system that multiple controllers are booted up item, be revised as being used as startup optimization using second operating system
Operating system operation；First operating system of the synchronous multiple controllers of upgrading.
A kind of method of controller system memory upgrading provided by the present invention, be by the first operation of operation controller
System, keeps business unbroken simultaneously, the second operating system of the controller of upgrading, after the completion of the second operating system update, every
From the controller is restarted, the second operating system is run, the first operating system of upgrading, so that the maintenance upgrade of the controller is completed,
The controller needs the time isolated in whole escalation process, simply restarts the time spent by controller this process, and shows
There is whole escalation process in technology to be required for isolating the controller, so in terms of existing technologies, upgrading in the present invention
The time of isolation controller is very short in journey, and in upgrading operation system, can perform the related service of the controller, so that
Reduce in storage system escalation process, system is in the time of unsteady state, improves the stability of whole system, and then
Reduce the probability that system breaks down in escalation process, improve the uniformity of data, storage system is improved to a certain extent
The high availability and business continuance of system.
It is preferred that, the controller in the present invention is multiple controllers；And each described controller is carried out in different time
Isolation and restart the controller, and the upgrading to the first operating system and the second operating system of each controller can divide
It is not synchronous to carry out.
For high-end storage and with multiple controllers storage system for because storage system is to the stability of a system
It is required that it is higher, so more than one controller can not be isolated simultaneously, it is possible to carry out the isolation of each controller successively
Restart, because each controller has two operating system alternate runs and upgrading, multiple controls of same storage system
Upgrading between device is not interfere with each other, and nor affects on the continuity of whole business, is controlled relative to each is isolated one by one in the prior art
Device processed, then the upgrading of segregate controller is carried out, substantially reduce the escalation process institute of the multiple controllers of whole storage system
The time of consuming, when also shortening storage system upgrading, the duration of multiple controller isolation reduces storage system and entirely risen
The time of single-point state is in during level, the stability of whole storage system is improved, it is ensured that the high-performance of storage system.
Present invention also offers a kind of device of the controller system memory upgrading with above-mentioned beneficial effect.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or the technical scheme of prior art
The accompanying drawing used required in technology description is briefly described, it should be apparent that, drawings in the following description are only this hair
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of flow chart of the embodiment for the controller system memory upgrading that Fig. 1 provides for the present invention；
The flow chart of another embodiment for the controller system memory upgrading that Fig. 2 provides for the present invention；
Fig. 3 is the structured flowchart of controller system memory update device provided in an embodiment of the present invention.
Embodiment
, it is necessary to first by control to be upgraded during for the existing storage system online upgrading with multiple controllers
Device is isolated, and after being completed to controller upgrading, then restarts controller, and in this way to all controllers successively one by one
Upgrading.After isolation controller, whole storage system is in single-point state, because the update time of each controller is long, also
Need to isolate upgrading one by one to each controller, storage system will be caused to be in single-point state for a long time, and the time more lives forever
The probability that Single Point of Faliure occurs in storage system will be bigger, occurs after Single Point of Faliure, can cause storage system deadlock, loss of data.
In field of storage, the security of user data is most important, and pursues high stability, height for high-end storage
Thereby how availability and business continuance, shorten the time that storage system is in single-point state, be the key solved the problems, such as.
Again because upgrading of the upgrading of controller mainly to operating system, in order to solve the above problems what the present invention was provided
The operating system of two achievable identical functions is provided with the system disk of each controller of storage system, without for a long time every
In the case of from controller, the updating operation of operating system is carried out in turn, so that shortening storage system is in single-point state
Time.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
The flow chart of a kind of embodiment for the controller system memory upgrading that the present invention is provided, as shown in figure 1, should
Method includes：
Step S101：AKU is uploaded to controller to be upgraded, and is stored to the second operating system of the controller
The subregion at place.
It should be noted that in order to avoid in controller escalation process, long-time isolation controller is each in the present invention
The file added on the system disk of controller in original operating system in another operating system, two operating systems can
To be identical or difference, if the operating system newly increased can to system disk other all subregions carry out and
The identical business operation that original operating system is carried out.
Further, since controller need not be run in two operating systems, and escalation process, it is necessary to an operation system simultaneously
System upgrading, an operating system business, so it is considered that the operating system being now currently running is in above-mentioned steps
First operating system, the operating system of off-duty is the second operating system, therefore, in the step, the first operating system and second
Operating system is only used for distinguishing the operating system being currently running and the operating system upgraded, or is considered in the control of upgrading
During device processed, that is first upgraded in two operating systems is considered the second operating system, upgrade afterwards for the first operating system, and
Some specific operating system is not considered as, and to original operating system and newly-increased operating system, is not also upgraded
The restriction of sequencing.
Step S102：Upgrade second operating system.
Because having in the business of the first operating system controller, the step and not needing isolation controller,
Updating operation can be carried out while the business of operation.
Step S103：The operating system that the controller is booted up, be revised as using second operating system as
The operating system of startup optimization.
After the completion of the second operating system update, the first operating system is upgraded, it is necessary to the second operation system
System operation service business, so the bootstrap of controller, such as Grub will be changed, by the boot option modification of bootstrap
For guiding the second operating system of operation.
It should be noted that what the step was not necessarily carried out after second operating system of upgrading is completed, can
Being carried out before the second operating system update is completed, it can also be and carried out before controller upgrading, all simply perform above-mentioned
A kind of embodiment of the order of step operation, is not the essential features of the present invention, modification startupoptions order
A basic principle be, controller run the first operating system after, controller restarting before.
Step S104：Isolate and restart the controller, the second operating system described in startup optimization.
For the operating system of startup optimization second, it is necessary to restart controller, also it is accomplished by first isolating controller, then weigh
Open, after controller is restarted, the second operating system of startupoptions selection guiding operation can be run, and it is big entirely to isolate restarting process
Generally at 5 minutes or so, for the isolation update time of 1 hour general compared to prior art, storage system is in single point-like
The time of state is very short, almost can be ignored, the upgrade method for the controller realized using technical scheme,
Improve the stability of storage system in escalation process.
Step S105：Upgrade first operating system.
First operating system of upgrading also in the second operating system business in the case of carry out, it is not required that every
From controller, after the completion of the first operating system, the upgrading of whole controller is completed.
Based on above-described embodiment, it is contemplated that upgrading bag data is in by network upload procedure, it is understood that there may be data transfer
The situation of mistake, so as to cause the upgrading failure of upgrading midway, the present invention can also be improved further.
The invention provides controller system memory upgrading another embodiment, this method includes：
AKU is being uploaded to controller to be upgraded, and is storing point to where the second operating system of the controller
After area, detect whether the AKU is satisfactory, if it is, the operation of upgrading second operating system is performed,
If it is not, then upgrading failure.
The detection of AKU is carried out before to the second operating system, if AKU is undesirable, upgrading failure,
It can require to upload satisfactory AKU again.Without the detection of AKU before to the second operating system update,
Second operating system update to a certain extent after, just find error in data, such as certain extreme case, in the second operating system
Soon upgrading is completed, and just finds that AKU is undesirable, then upgrading failure, and the time spent by whole escalation process does not have yet
There is any contribution of generation, and the time of whole operation system upgrade required consuming in itself is just long, this will result in largely
It is to waste the time, it is unfavorable when this is to whole storage system, so the detection before the second operating system of upgrading to AKU,
It can be conducive to saving the whole controller upgrading shared time, improve upgrading efficiency.
, should the invention provides another embodiment of controller system memory upgrading based on above-described embodiment
Method includes：
After first operating system of upgrading, the operating system that the controller is booted up is revised as with institute
The first operating system is stated as the operating system of startup optimization, during to restart the controller again, described in startup optimization
One operating system.
After the completion of the first operating system update, the bootstrap of controller can be changed, by the startup of bootstrap
Option is revised as guiding the second operating system of operation, if the second operating system operationally breaks down suddenly, it is only necessary to weight
New to start controller, the first operating system service business can avoid the industry occurred due to the second operating system failure
Business is interrupted, and is conducive to improving the stability and high availability of storage system.
Furthermore it is also possible to the step of omitting modification controller bootstrap in controller escalation process next time, letter
Change escalation process.
Based on any of the above-described embodiment, the controller in the present invention can be that a controller can be multiple controllers,
It that is to say and each controller in the storage system with multiple controllers is upgraded using above-mentioned embodiment, can be multiple
Controller is upgraded one by one or multiple controllers are synchronously upgraded, and can realize technical scheme, upgrading has
One principle of the storage system of multiple controllers is to perform the isolation of multiple controllers in different time points and restart institute
State the operation of controller.Just illustrated herein with a kind of specific embodiment.
The flow chart of another embodiment of controller system memory that the present invention is provided upgrading as shown in Fig. 2
This method includes：
Step S201：AKU is uploaded to multiple controllers to be upgraded, and is stored in the second operation of each controller
Subregion where system.
Step S202：Detect whether multiple controllers meet promotion condition, if it is, into step S203,
If it is not, then upgrading failure.
It should be noted that there may be failure in view of some controllers, and can not normally it upgrade, so in upgrading
Before, each controller is detected, but step S202 is not the essential features for realizing the present invention, the not no step,
Also technical scheme can be realized.
And detect whether multiple controllers meet promotion condition, can be that all controllers meet promotion condition,
Then all controllers are upgraded or first the controller for meeting promotion condition is upgraded simultaneously simultaneously, and do not meet liter
The controller of level condition, until not meeting after the controller adjustment normally of promotion condition, meets promotion condition without upgrading, then
Upgraded.The situation that the step only all meets promotion condition using all controllers is said as a kind of specific embodiment
Bright, this is not the essential features for realizing technical solution of the present invention.
Step S203：Synchronously upgrade the second operating system of each controller.
Because each controller there are two operating systems, isolation controller is not needed during operating system update,
So the upgrading of the operating system of each controller, does not have an impact each other, it is contemplated that reduce whole storage system upgrading
The total duration of program, is more preferred embodiment that the second operating system of each controller is upgraded simultaneously, but rise simultaneously
Second operating system of each controller of level, is not the essential features for realizing the present invention, each controller of upgrading one by one
The second operating system, or two controllers of upgrading simultaneously the second operating system, and the embodiment similar with this,
Also technical scheme can be realized, is not repeated one by one herein.
Step S204：The operating system that each controller is booted up, is revised as using the second operating system as opening
The operating system of dynamic operation.
Identical with any of the above-described embodiment, step S204 will not necessarily be performed with the order, reason and above-mentioned first
Individual specific embodiment is identical, will not be repeated here.
Step S205：Each controller, the second operating system of each controller of startup optimization are restarted in isolation successively.
Because the especially high-end storage of storage system, the stability requirement to system is especially high, do not allow simultaneously to one
Controller above is isolated simultaneously, so need that multiple controllers successively isolate to restart, and each controller isolation weight
Not inevitable requirement in the order present invention opened.
Step S206：Synchronously upgrade the first operating system of each controller.
It should be noted that the upgrading between the first operating system of each controller does not influence each other, because second
The upgrading of operating system is restarted in the isolation of corresponding controller to be carried out afterwards, so only each controller isolates what is restarted
Time can influence the upgrading of corresponding second operating system, because each controller is carried out successively, and the of each controller
The upgrading of two operating systems can be immediately performed updating operation or each after the isolation of corresponding controller is restarted
Individual controller carried out isolation restart after, the second operating system of all controllers is upgraded simultaneously, both upgrade second
The mode of operating system is two kinds of embodiments in the preferred embodiment for shorten whole controller system memory upgrading duration,
But this is not the essential features for realizing technical solution of the present invention, and similar embodiment is not gone to live in the household of one's in-laws on getting married one by one herein with this
State.
Controller system memory update device provided in an embodiment of the present invention is introduced below, storage described below
System controller update device can be mutually to should refer to above-described controller system memory upgrade method.
Fig. 3 is the structured flowchart of controller system memory update device provided in an embodiment of the present invention, the storage of reference picture 3 system
System controller update device can include：
Data module 100 is transmitted, for uploading AKU to controller to be upgraded, and is stored to the of the controller
Subregion where two operating systems, wherein, the controller is currently running the first operating system of the controller；
Upgraded module 200, for second operating system of upgrading, is additionally operable to upgrading first operating system；
Startup item module 300, for the operating system for being booted up the controller, is revised as with the described second operation
System as startup optimization operating system；
Restart module 400, isolate and restart the controller, the second operating system described in startup optimization.
As a kind of embodiment, controller system memory update device provided by the present invention can also be further
Including：
Detection module, for uploading AKU to controller to be upgraded, and is stored to the second behaviour of the controller
Make after the subregion where system, detect whether the AKU is satisfactory, if it is, performing upgrading second behaviour
Make the operation of system.
Based on above-described embodiment, controller system memory update device provided by the present invention can further include：
Upgraded module is controlled, includes multiple controllers for the controller, multiple controls is carried out in different time
Isolation in device escalation process processed simultaneously restarts the controller.
It is preferred that, the control upgraded module is additionally operable to the second operating system of the synchronous multiple controllers of upgrading；Together
The operating system for being booted up item of the bootstrap of multiple controllers is about in stepping, is revised as with the described second operation system
The operation united as the operating system of startup optimization；First operating system of the synchronous multiple controllers of upgrading.
The controller system memory update device of the present embodiment is used to realize foregoing controller system memory upgrade method,
Therefore the visible controller system memory upgrade method hereinbefore of embodiment in controller system memory update device
Embodiment part, for example, transmission data module 100, for realizing step in above-mentioned controller system memory upgrade method
S101, upgraded module 200, for realizing step S102 and step S105 in the above method, startup item module 300 is used to realize
Step S103 in method is stated, module 400 is restarted, for realizing step S104 in the above method, so, its embodiment can
With the description with reference to corresponding various pieces embodiment, it will not be repeated here.
The embodiment of each in this specification is described by the way of progressive, what each embodiment was stressed be with it is other
Between the difference of embodiment, each embodiment same or similar part mutually referring to.For being filled disclosed in embodiment
For putting, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Explanation.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example according to function in the above description.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of the method or algorithm that the embodiments described herein is described with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Controller system memory upgrade method provided by the present invention and device are described in detail above.Herein
In apply specific case the principle and embodiment of the present invention be set forth, the explanation of above example is only intended to side
The method and its core concept of the assistant solution present invention.It should be pointed out that for those skilled in the art, not
On the premise of departing from the principle of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification is also fallen into
In the protection domain of the claims in the present invention.
Claims (10)
1. a kind of method of controller system memory upgrading, it is characterised in that including：
AKU is uploaded to controller to be upgraded, and is stored to the subregion where the second operating system of the controller, its
In, the controller is currently running the first operating system of the controller；
Upgrade second operating system；
The operating system that the controller is booted up, is revised as the operation using second operating system as startup optimization
System；
Isolate and restart the controller, the second operating system described in startup optimization；
Upgrade first operating system.
2. according to the method described in claim 1, it is characterised in that uploading AKU to controller to be upgraded, and storing
Also include after to the subregion where the second operating system of the controller：
Detect whether the AKU is satisfactory, if it is, performing the operation of upgrading second operating system.
3. method according to claim 2, it is characterised in that also include after first operating system of upgrading：
The operating system that the controller is booted up, is revised as the operation using first operating system as startup optimization
System, during to restart the controller again, the first operating system described in startup optimization.
4. the method according to any one of claims 1 to 3, it is characterised in that the controller is multiple controllers；
It is described to isolate and restart the controller and include：
Isolation and the reboot operation of multiple controllers are performed in different time.
5. method according to claim 4, it is characterised in that upgrading second operating system includes：It is synchronous to rise
Second operating system of the multiple controllers of level；
The operating system for being booted up item of the bootstrap by the controller, is revised as with second operating system
Include as the operating system of startup optimization：The operation system for being booted up item of the synchronous bootstrap by multiple controllers
System, is revised as the operation using second operating system as the operating system of startup optimization；
Upgrading first operating system includes：First operating system of the synchronous multiple controllers of upgrading.
6. method according to claim 4, it is characterised in that uploading AKU to controller to be upgraded, and storing
Also include after to the subregion where the second operating system of the controller：
Detect whether multiple controllers meet promotion condition, if it is, performing the behaviour of upgrading second operating system
Make.
7. a kind of device of controller system memory upgrading, it is characterised in that including：
Data module is transmitted, for uploading AKU to controller to be upgraded, and is stored to the second operation of the controller
Subregion where system, wherein, the controller is currently running the first operating system of the controller；
Upgraded module, for second operating system of upgrading, is additionally operable to upgrading first operating system；
Startup item module, for the operating system for being booted up the controller, is revised as making with second operating system
For the operating system of startup optimization；
Restart module, isolate and restart the controller, the second operating system described in startup optimization.
8. device according to claim 7, it is characterised in that also include：
Detection module, for uploading AKU to controller to be upgraded, and is stored to the second operation system of the controller
After subregion where system, detect whether the AKU is satisfactory, if it is, performing upgrading the second operation system
The operation of system.
9. device according to claim 8, it is characterised in that also include：
Upgraded module is controlled, for when controller is multiple controllers, multiple controllers to be performed in different time
Isolate and reboot operation.
10. device according to claim 9, it is characterised in that the control upgraded module is additionally operable to：Synchronous upgrading is multiple
Second operating system of the controller；The synchronous operating system that multiple controllers are booted up to item, is revised as with institute
The second operating system is stated as the operation of the operating system of startup optimization；First operation system of the synchronous multiple controllers of upgrading
System.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721959A (en) * | 2021-08-30 | 2021-11-30 | 联想(北京)有限公司 | Information processing method and device and electronic equipment |
| CN114389951A (en) * | 2022-03-02 | 2022-04-22 | 深圳震有科技股份有限公司 | Seamless upgrading method under 5G network, network equipment and storage medium |
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